Indoor Air Quality (IAQ) is measure for the quality of air in interiors, the comfortable indoor environmental quality can make people feel fresh, work efficiency and good for the health. The CO2 concentration is the important factor of good indoor air quality. People breath in oxygen and breath out CO2, nowadays people often close the windows to avoid noise and enjoy the comfort living and working environment provided by air-conditioning systems, which results in the fact that the indoor concentration of CO2 is far higher than outdoor average. With the high CO2 concentration and non- proper ventilation, people will feel headaches, dull, drowsiness, lose of concentration and correspond to the high levels of dust, chemicals and bacteria in the air.

When the power has been connected, The ZGw063RY CO2 monitor will begin to work. In order to meet your
personal requirements, it is advisable to set up the customizing parameters. WarmUp:
It lasts approximately 1min before WARM UP disappears; all MODE functions will not response during warm up.

Note: The factory setting with alarm is buzzer off, user can set the alarm on/off according to MUTE function
instruction.

Setting the ALTI mode:

Press MODE, the ALTI icon flashes.

Press ENTER, ALTI show on the display And press the mode button to alter between the m(meter) and ft (feet).

Adjust altitude (step=100m/500ft) by up/down button.

Press ENTER again to save the data.

Setting the ALARM 1 level:

Press MODE, the ALARM 1 icon flashes.

Press ENTER. Using the Up/Down to set the parameter. the default alarm 1 is 400~2900 ppm

Press ENTER again to save the data.

Note: 1) When the CO2 Alarm level is ≧1,000 ppm, the interval is ±100ppm, when the CO2 Alarm level is ＜1,000 ppm, the interval is ±50 ppm.

2) After setting with new alarm level parameter, the green LED will light when CO2 concentration below the alarm 1 level.

Setting the ALARM 2 level:

Press MODE, the ALARM 2 icon flashes.

Press ENTER. Using the Up/Down to set the parameter. the default alarm 2 is 500~3000 ppm

Press ENTER again to save the data.

*Note: 1) When CO2 Alarm level is ≧1,000 ppm, the interval is ±100ppm, when the CO2 Alarm level is
＜1,000 ppm, the interval is ±50 ppm.

2) After setting with new alarm level parameter, the green LED will light when CO2 concentration below the alarm1 level. The red LED will light when CO2 concentration exceeds the alarm 2 level, the yellow LED will light when CO2 concentration is between the alarm1 level and the alarm 2 level.

Setting the CALI (calibration) Mode:

Press MODE, The CALI flashes.

Press ENTER, the CALI icon on the display. Adjust the lower display to the ambient CO2 reading by Up/Down button.

Press MODE for more than 10sec, CALIBRATION flashes. Calibration will be done automatically after 3 minute and the LCD will display “Pass” or “Fail.” If it shows “Fail,” please try again.

Setting the DataloggerMode:

Press MODE, DATALOGGER icon flashes.

Press ENTER, the reading of CO2 and Temperature shows on the LCD.

Press Up/Down to page up/down the reading. The numbers from 1 to 48 will display with CO2 reading alternatively. If the LCD display with number “1”, it indicates the first datalogger with CO2, temperature reading.The datalogger function can record 48 sets reading.

Remark: With the Built-in Datalogger,ZGw063RY can provide the past CO2,temperature reading within the past 24 hours. The log interval is 30 minutes per data. ZGw063RY is connected with power and used for the first time, If the working time is more than 30 minutes, ZGw063RY will have CO2, temperature reading in datalogger, if the working time is less than 30 minutes, the LCD will display “NULL” while using the datalogger function.

Setting the MAX MIN Model:

Press MODE, the MAX MIN flashes simultaneously.

Press ENTER, the reading of CO2 and Temperature shows on the LCD alternatively.

Press Up/Down and the “CLR” will flash on the LCD. Press Enter to CLEAR the MAX and MIN record.

Note: With the Built-in MAX MIN mode, ZGw063RY can provide the Maximum and Minimum CO2,temperature
reading record after the device is powered on. If users press up/down to clear the MAX and MIN CO2,
temperature reading record, ZGw063RY will provide the new MAX and MIN CO2 ,temperature reading
from that time.

Setting the "RcFS" Mode:

Press MODE, The rcFS flashes simultaneously.

Press ENTER, the icon “no” shows on the LCD, Press the Up/Down to select the no/yes.

After selecting, press ENTER to save the changes.

Note: If the users set the data or calibrate the sensor wrongly. You can use the RcFS (Recover the factory Setting) to come back to factory setting data, the datalogger with 48 sets of CO2,RH and temperature will be will be cleared.